421203013 has 8 divisors (see below), whose sum is σ = 525136320. Its totient is φ = 328210080.

The previous prime is 421203011. The next prime is 421203019. The reversal of 421203013 is 310302124.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421203013 - 2¹ = 421203011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421203011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2735008 + ... + 2735161.

It is an arithmetic number, because the mean of its divisors is an integer number (65642040).

Almost surely, 2^421203013 is an apocalyptic number.

It is an amenable number.

421203013 is a deficient number, since it is larger than the sum of its proper divisors (103933307).

421203013 is a wasteful number, since it uses less digits than its factorization.

421203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470187.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 421203013 is about 20523.2310565369. The cubic root of 421203013 is about 749.6015738611.

Adding to 421203013 its reverse (310302124), we get a palindrome (731505137).

The spelling of 421203013 in words is "four hundred twenty-one million, two hundred three thousand, thirteen".